Abstract
The confirmed presence of alien North American beavers in some regions of Eurasia may compete with and hinder the successful recolonisation of the native Eurasian species back to its former range. Distinguishing the two species in the field can be problematic, time consuming and expensive, thereby potentially limiting appropriate conservation actions. Here, a rapid and inexpensive genetic SNP assay is described that can separate the two species from either non-invasively collected samples or samples taken directly from restrained individuals. We applied these new genetic assays to free-living beavers of unknown origin sampled in Scotland.
References
Danilov P, Kanshiev V, Fyodorov F (2011a) Differences of the morphology of the North American and Eurasian beavers in Karelia. In: Sjöberg G, Ball JP (eds) Restoring the European Beaver: 50 Years of Experience. Pensoft Publishers, Sofia, pp 49–54
Danilov P, Kanshiev V, Fyodorov F (2011b) Characteristics of North American and Eurasian beaver ecology in Karelia. In: Sjöberg G, Ball JP (eds) Restoring the European Beaver: 50 Years of Experience. Pensoft Publishers, Sofia, pp 55–72
Dewas M, Herr J, Schley L, Angst C, Manet B, Landry P, Catusee M (2012) Recovery and status of native and introduced beavers Castor fiber and Castor canadensis in France and neighbouring countries. Mammal Rev 42:144–165
Djoshkin W, Safonow W (1972) Die Biber der Alten und der Neuen Welt. Neue Brehm Bücherei 437, Wittenberg-Lutherstadt
Durka W, Babik W, Ducroz JK, Heidecke D, Rosell F, Samjaa R, Stubbe M (2005) Mitochondrial phylogeography of the Eurasian beaver Castor fiber L. Mol Ecol 14:3843–3856
Halley DJ, Rosell F (2002) The beaver’s reconquest of Eurasia: status, population development and management of a conservation success. Mammal Rev 32:153–178
Herr J, Schley L (2009) Barbed wire hair traps as a tool for remotely collecting hair samples from beavers (Castor sp.). Lutra 52:123–127
Horn S, Durka W, Wolf R, Ermala A, Stubbe A, Stubbe M, Hofreiter M (2011) Mitochondrial genomes reveal slow rates of molecular evolution and the timing of speciation in beavers (Castor), one of the largest rodent species. PLoS One 6:e14622. doi:10.1371/journal.pone.0014622
Kuehn R, Schwab G, Schröder W, Rottmann O (2000) Differentiation of Castor fiber and Castor canadensis by non-invasive molecular methods. Zoo Biol 19:511–515
Lahti S, Helminen M (1974) The beaver Castor fiber (L.) and C. canadensis (Kuhl) in Finland. Acta Theriol 19:177–189
Lavrov VL (1996) Hybridization between Castor fiber orientoeuropaeus (Lavr, 1981) and Castor canadensis (Kühl, 1820). Bull Mosc Soc Nat Biol Ser 101:20–21 (In Russian with English summary)
Lavrov LS, Orlov VN (1973) Karyotypes and taxonomy of modern beavers (Castor, Castoridae, Mammalia). Zoologicheskii Zhurnal 52:734–743 (In Russian with English summary)
McEwing R, Kitchener AC, Holleley C, Kilshaw K, O’Donoghue P (2011) An allelic discrimination SNP assay for distinguishing the mitochondrial lineages of European wildcats and domestic cats. Conserv Genet Resour 4:163–165
Michaux J, Manet B, Herr J, Eugene M, Dalbeck L, Denne R, Schwoerer ML, Venske S, Rosell F, Schley L (2011) Current status of the distribution of the North American beaver (Castor canadensis) in the greater region of Belgium, Luxembourg and Western Germany. Abstract, 85th Annual Conference of the German Society of Mammalogy, 13–17 September 2011, Luxembourg
Morin PA, Luikart G, Wayne RK, The SNP workshop group, Morin PA, Luikart G, Wayne RK (2004) SNP’s in ecology, evolution and conservation. Trends Ecol Evol 19:208–216
Osborn DJ (1955) Techniques of sexing beaver, Castor canadensis. J Mammal 36:141–142
Parker H, Nummi P, Hartman G, Rosell F (2012) Invasive North American beaver Castor canadensis in Eurasia: a review of potential consequences and strategy for eradication. Wildl Biol 18:354–365
Rosell F, Sun L (1999) Use of anal gland secretion to distinguish the two beaver species Castor canadensis and C. fiber. Wildl Biol 5:119–123
Rosell F, Bozser O, Collen P, Parker H (2005) Ecological impact of beavers Castor fiber and Castor canadensis and their ability to modify ecosystems. Mammal Rev 32:248–276
Zurowski W (1983) Worldwide beaver symposium, Helsinki 1982: opening remarks. Acta Zool Fenn 174:85–86
Acknowledgments
We are grateful to Stefanie Venske (Nature Erlebnis Zentrum Wappenschmiiede, Germany) for providing samples as well as Casten Nowak, Robert Kraus (Conservation Genetics Group, Senckenberg, Germany), Helen Senn (WildGenes Laboratory, UK) for discussions, and continued support from Martin Gaywood, (Scottish Natural Heritage), Liz Haliwell, (Countryside Council for Wales) and the Scottish Beaver Trial. This work was funded by The Royal Zoological Society of Scotland.
Author information
Authors and Affiliations
Corresponding author
Additional information
Communicated by C. Gortázar
Rights and permissions
About this article
Cite this article
McEwing, R., Frosch, C., Rosell, F. et al. A DNA assay for rapid discrimination between beaver species as a tool for alien species management. Eur J Wildl Res 60, 547–550 (2014). https://doi.org/10.1007/s10344-014-0803-6
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10344-014-0803-6